<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <table border="1" cellspacing="0" width="500px">
        <tr>
            <td>讲师名称</td>
            <td>所教班级</td>
        </tr>
        <tr>
            <td>朱老师</td>
            <td>Java1812</td>
        </tr>
        <tr>
            <td>鞠老师</td>
            <td>H51812</td>
        </tr>
        <tr>
            <td>琴老师</td>
            <td>UI1812</td>
        </tr>
    </table>
    <hr>
    <table border="1" cellspacing="0" width="500px">
        <tr>
            <td>讲师名称</td>
            <td>所教班级</td>
        </tr>
        <tr>
            <td rowspan="2">朱老师</td>
            <td>Java1812</td>
        </tr>
        <tr>
           <!-- <td>鞠老师</td>-->
            <td>H51812</td>
        </tr>
        <tr>
            <td>琴老师</td>
            <td>UI1812</td>
        </tr>
    </table>
    <hr>
    <table border="1" cellspacing="0" width="500px">
        <tr>
            <td>讲师名称</td>
            <td>所教班级</td>
        </tr>
        <tr>
            <td colspan="2">朱老师</td>
            <!--<td>Java1812</td>-->
        </tr>
        <tr>
            <td>鞠老师</td>
            <td>H51812</td>
        </tr>
        <tr>
            <td>琴老师</td>
            <td>UI1812</td>
        </tr>
    </table>
    <hr>
    <table border="1" cellspacing="0" width="500px">
        <tr>
            <td>ID</td>
            <td>名字</td>
            <td>年龄</td>
            <td>性别</td>
        </tr>
        <tr>
            <td>1</td>
            <td>张三</td>
            <td>23</td>
            <td>男</td>
        </tr>
        <tr>
            <td>2</td>
            <td>李四</td>
            <td>23</td>
            <td>女</td>
        </tr>
        <tr>
            <td>3</td>
            <td>王五</td>
            <td>23</td>
            <td>男</td>
        </tr>
    </table>
</body>
</html>